<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>三栏布局——左右浮动布局</title>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      /* body {
        min-width: 550px;
      } */
      /* .container > div {
        min-height: 200px;
      } */
      .left {
        float: left;
        width: 200px;
        background: #ffbbff;
      }
      .middle {
        margin: 0 200px;
        background: #bfefff;
      }
      .right {
        float: right;
        width: 200px;
        background: #eeee00;
      }
    </style>
  </head>
  <body>
    <!-- <div class="container"> -->
      <div class="left">left</div>
      <div class="right">right</div>
      <div class="middle">middle</div>
    <!-- </div> -->
  </body>
</html>
